Senecio rapifolius
Senecio amplectens
openwoods ragwort
alpine groundsel, showy alpine ragwort
(unevenly purple-tinged, often glaucous) glabrous.
(often purplish-tinged) glabrous or sparsely and unevenly hairy, especially near leaf axils and among heads, usually glabrescent.
1–(2–3).
single or loosely clustered.
progressively reduced distally; petiolate;
blades ovate to oblanceolate, 4–8(–9+) × (2–)3–5 cm, bases tapered, margins dentate to incised-dentate (some denticles callous; mid leaves similar, smaller, ± clasping; distal leaves bractlike).
usually progressively reduced distally (basal sometimes smaller than proximal or mid leaves); petiolate (petioles shorter than to equaling blades, often clasping);
blades broadly lanceolate or lanceolate to oblanceolate, (5–)10–20+ × 2–4(–5+) cm, bases tapered, margins dentate to denticulate (distal leaves smaller, bractlike).
0.
usually ± 13, sometimes fewer;
corolla laminae (10–)15–25 mm.
(± 5) ± 8, 3–4(–5) mm, tips green or brownish.
± 13 or ± 21, tips often black or brownish (sometimes with scattered black hairs).
0 or of 1–3+ lance-deltate to lance-linear bractlets (mostly less than 1 mm).
of 2–5+ linear to filiform bractlets (lengths to 1/2 phyllaries).
25–60+ in cymiform clusters of 3–12.
nodding, 1–5(–10).
glabrous.
glabrous.
= 40.
= 40, ca. 175–180.
Senecio rapifolius
Senecio amplectens
Varieties 2 (2 in the flora).
The varieties of Senecio amplectens are distinguished by morphologic tendencies and habitat preferences; there are many intermediates. Where the ranges of the two overlap, var. amplectens occurs at slightly lower elevations than var. holmii.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Plants (30–)40–60+; herbage sometimes sparsely hairy; leaves mostly proximal and mid cauline; phyllaries frequently black or purplish toward tips, sometimes with black hairs on abaxial faces | var. amplectens |
1. Plants (5–)10–20(–30) cm; herbage glabrous or glabrate at flowering; leaves mostly basal and proximal; phyllaries green or light purplish, glabrous | var. holmii |
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USDA Plants Database
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